The applications of large-diameter titanium flanges are diverse, finding widespread use across various industrial sectors, including but not limited to:

1. Chemical Industry: Large-diameter titanium flanges are commonly employed to connect various vessels, reactors, and pipelines in chemical equipment, addressing the challenges posed by highly corrosive media and high-temperature environments.

2. Marine Engineering: Due to titanium's excellent corrosion resistance, large-diameter titanium flanges are often used in marine engineering, including applications in seawater desalination equipment and marine water treatment systems, ensuring stable operation in seawater environments.

3. Energy Sector: In the energy industry, these flanges are utilized to connect and support petroleum and natural gas pipelines, demonstrating corrosion resistance suitable for challenging oil and gas environments.

4. Aerospace: Large-diameter titanium flanges are employed in the aerospace sector for connecting critical components such as aircraft fuel systems and hydraulic systems, leveraging titanium's advantages of lightweight and high strength.

5. Fertilizer Production: Widely used in the fertilizer industry, these flanges connect reactors and separators, handling corrosive gases and liquids generated during chemical reactions.

The production process of large-diameter titanium flanges is a complex engineering endeavor involving several key steps to ensure the quality and performance of the final product:

1. Material Selection: Choose suitable industrial pure titanium or titanium alloy materials based on specific application requirements, determining the grade and specifications.

2. Cutting and Preforming: Employ cutting equipment to shape raw materials into appropriate forms and use preforming processes to achieve initial shaping.

3. Heating and Forming: Heat the preformed titanium material to the required temperature and use large molds or hydraulic forming equipment to shape it into the desired large-diameter flange.

4. Heat Treatment: Subject the formed large-diameter titanium flange to heat treatment to enhance its mechanical properties and corrosion resistance.

5. Machining: Precisely machine the heat-treated flange, including hole machining, thread machining, etc., ensuring dimensional accuracy and shape precision.

6. Welding: Weld the components of the flange that require assembly, ensuring high-quality welds and strong connections.

7. Surface Treatment: Perform surface treatments such as polishing and sandblasting to enhance the appearance and corrosion resistance of the large-diameter titanium flange.

8. Quality Inspection: Conduct thorough quality inspections, including dimensional checks, weld inspections, chemical composition analysis, etc., to ensure the product meets design requirements.

9. Packaging and Delivery: Carefully package the final large-diameter titanium flange using appropriate methods for timely delivery to customers.

Through this comprehensive production process, large-diameter titanium flanges are finely manufactured to meet the diverse requirements of engineering and industrial applications.